William henry hey wood



(No Model.)

W. H. HEYWOOD. GLAZING BAR FOR SKYLIGHTS.

No. 479,275. Patented July 19, 1892.

FIG-.2.

Wnesses UNITED STATES PATENT OFFICE.

W'ILLIAM. HENRY I-IEYWOOD, OF HUDDERSFIELD, ENGLAND.

GLAZlNG-BAR FOR SKYLIGHTS.

SPECIFICATION forming part of Letters Patent No. 479,275, dated July 19,1892.

Application filed December 22, 1891. Serial No. 415,945. (No model.)Patented in England February 12, 1890, No. 2,263.

To aZZ whom it may concern.-

Be it known that I, WILLIAM HENRY HEY- WOOD, a subject of the Queen ofGreat Britain, residing at Huddersfield, in the county of York, England,have invented new and useful Improvements in Glazing-Bars for Skylights,(for which I have obtained a patent in Great Britain, No. 2,263, datedFebruary 12, 1890,) of which the following is a specification.

The objects of this invention are to make the glazing of glazed roofsdust and water proof, to prevent breakage and rattle from vibration,contraction, and expansion, and to provide a more perfect means ofdealing with the condensed water by forming the leaden glazing bar andcap in one piece.

In the drawings, Figure 1 is a sectional elevation of a T iron or steelbar employed in my system of glazing. Fig. 2 is a sectional elevation ofglazing bar and cap before it is bent. Fig. 3 is a sectional perspectiveView of my system of glazing.

I employ a T iron or steel bar A and a leaden glazing-barB. These Ifasten together by bending the two bottomv wings D of the leadenglazing-bar B under the table of the T iron or steel bar A. I thensecure the bar to the purlin or ridge-piece at the top by any suitablemeans, and at the bottom I secure the bar to the purlin or wall-plateEby means of a Wrought or cast iron chair F, and in such manner and atsuch a distance from the purlin as to allow the condensed water to rundown the bar without touching the said purlin or wall-plateintotheinterior of the building. I then take a packing of asbestus orsilicate of cotton G or some material containing a mixture of eitherasbestus or silicate of cotton, or both, and insert it into the grooveH, having first (if asbestus be used) prepared the same to resist theaction of water by impregnating it with oil, tallow, or some othersuitable ingredient. This packing forms a bed for the glass J to restupon, making the glazing dust-tight. The upper wings K of the leaden barI use as a cap. These wings have a bead L 011 the under side and arepressed down with a suitable tool over the channel until the center ofthe wings K touch the glass, securing the same, and thus creating anair-chamber M, preventing capillary attraction, and keep the water frompassing under the cap.

WVhat I claim as the invention, and desire to secure by Letters Patent,is-

The combination, with the T-iron A, of a glazing-bar B, resting upon thetable of said T-iron, and having wings D D at its lower part to embracesaid T-iron and secure said bar thereto, grooves H H, formed in thatportion of said bar which rests upon the table of said T-iron, wings KK, provided at their outer ends with beads L L, and packing G G in thegrooves H H, substantially as described.

In testimony whereof I hereunto aflix my signature in the presence oftwo witnesses.

WILLIAM HENRY HEYNVOOD.

Witnesses:

JOHN E. WALSH,

Orossley Street, Halifax. ABM. REED,

Halifax.

